the laserdisc also has a short making of piece on it apparently.
the sequels are considered to be so universally bad i bet they will never get a dvd release as i've heard the fan demand is just not there and they won't put up the money.
the first film has a cult following and was an 80's fantasy classic flick.
and while we are on the subject 35.00 for a sealed as mint laserdisc is not expensive at all. i collect laserdiscs, and own the japan special collection for star wars which cost me a pretty penny, lol.